One thing I hated about XI was always looking on wiki just to find out hidden information that wasn't shown in game. I suggest SE stop this blindfold trend and just have us informed in game by what the item/ability/spell can do. I hate to bring it up but one thing I admired about WoW is the informative tooltips. SE fix your tooltips and let us know something similar to this(but not limited to)...
1)Spell/Ability Duration(this should be on the ability tooltip)
2)Spell/Ability Modifiers(if certain elements/stat increases damage)
3)Show stat increases/decreases on food
4)Show hidden info on armor/weapons(I should know if a piece of armor gives a boost without months of extensive testing)
This is a few things I would personally like to know. However, any added info that would prevent me searching on yg or wiki less would help. I might be in a minority that cares for this info in game but I feel its a decent suggestion.